ASTROSAT CZTI

Data Quality Report

Orbit 28054

Creation date: 2024-06-27T19:47:32.735531
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A10_057T02_9000004054_28054cztM0_level2.evt modeM0/AS1A10_057T02_9000004054_28054cztM0_level2_quad_clean.evt
Size (bytes)568,906,56071,879,040
Size542.6 MB 68.5 MB
Events in quadrant A3,589,294445,633
Events in quadrant B3,471,221441,961
Events in quadrant C3,758,185424,136
Events in quadrant D5,971,104411,679

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145920
B0141520
C0150970
D0223780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64981141.754386%
B64991181.815664%
C64991642.523465%
D64993956.077858%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7668 6498 1 1 0.01% 0.02%
B 7669 6499 1 1 0.01% 0.02%
C 7669 6499 0 0 0.00% 0.00%
D 7669 6499 288 288 3.76% 4.43%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 13 172163 970.69 885 870 176.5
A 13 254 11276 58.97 885 870 176.5
A 3 137 8022 40.53 885 870 176.5
B 4 200 22128 130.57 868 847 163.0
B 12 111 19554 114.77 868 847 163.0
B 11 111 17369 101.37 868 847 163.0
C 3 233 353031 1818.97 837 843 193.6
C 14 238 135784 696.94 837 843 193.6
C 13 61 5794 25.57 837 843 193.6
D 8 195 1765154 8870.64 840 820 198.9
D 1 52 557531 2799.01 840 820 198.9
D 2 250 333322 1671.74 840 820 198.9

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter